Sensor #13 - turntable swing angle (1), Sensor #14 - steer angle sensor (4), Sensor #15 - axle extend/retract sensor (4) – JLG 1850SJ Service Manual User Manual

Page 327: Sensor #16 - brake-two speed pressure sensor (1), Sensor #18 - tilt sensor (1), Sensor #19 - warm up switch (1), Sensor #20 - main valve pressure transducer (1), Platform level sensor -45